Who is beating on my new lungfish???

[domingos.44]

Hi I recently introduced a south american lungfish into my tank and he's about 28 inches.. The tank is a 220 gallon and i cant figure out whos chewing on him as there is never signs of anyone being aggressive towards him during the day and evening when im around but ever morning i notice new chew marks his legs are half chewed off and his tail is in bad shape chucks missing and my current stock is....
18 inch rtg arowana
15 inch jardini
Three 14 inch motoro stingrays
16 inch jaguar cichlid
14 inch paroon shark
8 inch indo tiger

I was wondering if anyone has any thoughts or have had problems with keeping any of these fish with lungfish

Thank-you

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[Source310]

16" jaguar

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[tgroen]

yea id say the jag or the jardini depending on how aggressive it is.

 

[King-eL]

I'm guessing the stingrays as I've seen my former stingray pinned down my AUL and take a chunk out.

 

[Anderman]

Probably aros and rays. My RTG is always trying to bite something or chase it.

 

[tudiapaktam]

Jaguar most likely.

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[fwprawn]

Honestly - I think ALL of them.

 

[Tramonte172]

Any could do it. I would say the Jar and the Jag are the most likely culprits.

 

[rodger]

My guess is the people who have not guessed rays have not read much about rays.